HK1041750A1 - Method and apparatus for reducing peak-to-average ration in a cdma communication system. - Google Patents
Method and apparatus for reducing peak-to-average ration in a cdma communication system.Info
- Publication number
- HK1041750A1 HK1041750A1 HK02103351A HK02103351A HK1041750A1 HK 1041750 A1 HK1041750 A1 HK 1041750A1 HK 02103351 A HK02103351 A HK 02103351A HK 02103351 A HK02103351 A HK 02103351A HK 1041750 A1 HK1041750 A1 HK 1041750A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- auxiliary pilot
- present
- pilot channels
- reducing peak
- communication system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Relay Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/239,449 US6721349B1 (en) | 1999-01-28 | 1999-01-28 | Method and apparatus for reducing peak-to-average ratio in a CDMA communication system |
PCT/US2000/002292 WO2000045518A2 (en) | 1999-01-28 | 2000-01-28 | Method and apparatus for reducing peak-to-average ratio in a cdma communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1041750A1 true HK1041750A1 (en) | 2002-07-19 |
Family
ID=22902173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK02103351A HK1041750A1 (en) | 1999-01-28 | 2002-05-03 | Method and apparatus for reducing peak-to-average ration in a cdma communication system. |
Country Status (10)
Country | Link |
---|---|
US (1) | US6721349B1 (de) |
EP (2) | EP1858171B1 (de) |
JP (2) | JP2002536864A (de) |
KR (1) | KR100740738B1 (de) |
CN (1) | CN1196273C (de) |
AT (2) | ATE375031T1 (de) |
AU (1) | AU2976500A (de) |
DE (2) | DE60045053D1 (de) |
HK (1) | HK1041750A1 (de) |
WO (1) | WO2000045518A2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6671250B1 (en) * | 1999-08-17 | 2003-12-30 | Qualcomm Incorporated | Method for deep paging |
US6961369B1 (en) | 1999-11-09 | 2005-11-01 | Aware, Inc. | System and method for scrambling the phase of the carriers in a multicarrier communications system |
US6928084B2 (en) * | 2000-03-28 | 2005-08-09 | At & T Corp. | OFDM communication system and method having a reduced peak-to-average power ratio |
EP1195917B1 (de) * | 2000-08-02 | 2004-02-25 | Lucent Technologies Inc. | Verfahren zur Verringerung des Verhältnisses zwischen Spitzen- und mittlerer Leistung in einem drahtlosen Kommunikationssystem |
US6847677B1 (en) * | 2000-09-29 | 2005-01-25 | Qualcomm, Incorporated | Method and apparatus for efficient Walsh covering and summing of signals in a communication system |
JP3947770B2 (ja) * | 2001-03-12 | 2007-07-25 | 直樹 末広 | 多種拡散系列を用いたcdma通信方式 |
US7453933B2 (en) * | 2001-05-04 | 2008-11-18 | Lucent Technologies Inc. | Method of estimating a signal-to-interference+noise ratio (SINR) using data samples |
KR100866196B1 (ko) * | 2001-12-29 | 2008-10-30 | 삼성전자주식회사 | 직교 주파수 분할 다중 무선통신시스템에서 피크전력 대평균전력 감소장치 및 방법 |
KR100452512B1 (ko) * | 2002-08-16 | 2004-10-13 | 엘지전자 주식회사 | 채널용량 개선 왈쉬코드 확산장치 및 그 운용방법 |
KR100956820B1 (ko) * | 2003-05-12 | 2010-05-12 | 엘지전자 주식회사 | 이동 통신 시스템에서 오버 헤드 채널을 전송하는 방법 |
KR20050065295A (ko) * | 2003-12-23 | 2005-06-29 | 삼성전자주식회사 | 보조 심볼을 이용한 시공간 블록 부호 인코딩 방법 |
JP4619797B2 (ja) * | 2005-01-14 | 2011-01-26 | 富士通株式会社 | 無線通信システム及び無線通信装置 |
US7894402B2 (en) * | 2005-04-15 | 2011-02-22 | Alcatel-Lucent Usa Inc. | High rate packet data spatial division multiple access (SDMA) |
US20070058752A1 (en) * | 2005-07-29 | 2007-03-15 | Faraday Technology Corp. | Methods and systems for estimating sampling frequency offset of OFDM symbols |
CN101060344B (zh) * | 2006-04-19 | 2010-05-12 | 大唐移动通信设备有限公司 | 时分同步码分多址系统中的中频消峰方法和系统 |
US7848446B2 (en) * | 2006-09-27 | 2010-12-07 | Telefonaktiebolaget L M Ericsson (Publ) | Reduction of peak-to-average-power ratio in a telecommunications system |
US20120014244A1 (en) * | 2009-03-31 | 2012-01-19 | Panasonic Corporation | Base station, mobile station, pilot transmission method, and channel estimation method |
US8325697B2 (en) | 2009-10-13 | 2012-12-04 | Qualcomm Incorporated | Methods and apparatus for selecting and transmitting pilots |
US8331488B2 (en) | 2009-10-13 | 2012-12-11 | Qualcomm Incorporated | Methods and apparatus for communicating information using non-coherent and coherent modulation |
CN101841349B (zh) * | 2010-04-12 | 2013-04-03 | 北京理工大学 | 一种用于直扩系统的mpsk窄带干扰抑制方法 |
US11032061B2 (en) * | 2018-04-27 | 2021-06-08 | Microsoft Technology Licensing, Llc | Enabling constant plaintext space in bootstrapping in fully homomorphic encryption |
US11764940B2 (en) | 2019-01-10 | 2023-09-19 | Duality Technologies, Inc. | Secure search of secret data in a semi-trusted environment using homomorphic encryption |
CN109635940B (zh) * | 2019-01-28 | 2021-04-06 | 深兰人工智能芯片研究院(江苏)有限公司 | 一种基于卷积神经网络的图像处理方法及图像处理装置 |
WO2020250398A1 (ja) * | 2019-06-13 | 2020-12-17 | 株式会社Nttドコモ | 通信装置 |
US20230155624A1 (en) * | 2021-11-12 | 2023-05-18 | POSTECH Research and Business Development | Transceiver and operating method thereof |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901307A (en) | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US5109390A (en) | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver in a cdma cellular telephone system |
US5056109A (en) | 1989-11-07 | 1991-10-08 | Qualcomm, Inc. | Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system |
US5101501A (en) | 1989-11-07 | 1992-03-31 | Qualcomm Incorporated | Method and system for providing a soft handoff in communications in a cdma cellular telephone system |
US5485486A (en) | 1989-11-07 | 1996-01-16 | Qualcomm Incorporated | Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system |
US5381449A (en) * | 1990-06-12 | 1995-01-10 | Motorola, Inc. | Peak to average power ratio reduction methodology for QAM communications systems |
US5103459B1 (en) | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5467367A (en) | 1991-06-07 | 1995-11-14 | Canon Kabushiki Kaisha | Spread spectrum communication apparatus and telephone exchange system |
US5550809A (en) | 1992-04-10 | 1996-08-27 | Ericsson Ge Mobile Communications, Inc. | Multiple access coding using bent sequences for mobile radio communications |
US5329547A (en) | 1993-03-11 | 1994-07-12 | Motorola, Inc. | Method and apparatus for coherent communication in a spread-spectrum communication system |
MY112371A (en) | 1993-07-20 | 2001-05-31 | Qualcomm Inc | System and method for orthogonal spread spectrum sequence generation in variable data rate systems |
US5471497A (en) * | 1993-11-01 | 1995-11-28 | Zehavi; Ephraim | Method and apparatus for variable rate signal transmission in a spread spectrum communication system using coset coding |
KR960003102B1 (ko) | 1993-12-01 | 1996-03-04 | 재단법인 한국전자통신연구소 | 씨.디.엠.에이(cdma) 이동통신 기지국 변조장치의 채널 변조회로 및 그를 이용한 변조장치 |
US5418813A (en) | 1993-12-06 | 1995-05-23 | Motorola, Inc. | Method and apparatus for creating a composite waveform |
JPH07235913A (ja) | 1994-02-23 | 1995-09-05 | Sony Corp | スペクトラム拡散通信装置及び信号強度検出装置 |
US5442625A (en) | 1994-05-13 | 1995-08-15 | At&T Ipm Corp | Code division multiple access system providing variable data rate access to a user |
US5604730A (en) | 1994-07-25 | 1997-02-18 | Qualcomm Incorporated | Remote transmitter power control in a contention based multiple access system |
JP3444444B2 (ja) | 1994-09-30 | 2003-09-08 | ソニー株式会社 | 通信端末装置 |
KR970011690B1 (ko) * | 1994-11-22 | 1997-07-14 | 삼성전자 주식회사 | 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기 |
US5566164A (en) | 1994-12-19 | 1996-10-15 | Stanford Telecommunications, Inc. | Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals |
US5623485A (en) | 1995-02-21 | 1997-04-22 | Lucent Technologies Inc. | Dual mode code division multiple access communication system and method |
US5793797A (en) | 1995-05-09 | 1998-08-11 | Unisys Corporation | Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals |
JP3235766B2 (ja) * | 1995-06-12 | 2001-12-04 | 株式会社エヌ・ティ・ティ・ドコモ | マルチキャリアピーク電力抑圧送信装置 |
JP2718398B2 (ja) * | 1995-06-30 | 1998-02-25 | 日本電気株式会社 | Cdma基地局送信装置 |
JPH0993652A (ja) | 1995-09-20 | 1997-04-04 | Sony Corp | 移動通信方法及び移動通信システム |
US5926500A (en) | 1996-05-28 | 1999-07-20 | Qualcomm Incorporated | Reduced peak-to-average transmit power high data rate CDMA wireless communication system |
US5930230A (en) | 1996-05-28 | 1999-07-27 | Qualcomm Incorporated | High data rate CDMA wireless communication system |
US5920552A (en) | 1996-05-30 | 1999-07-06 | Lucent Technologies, Inc. | Variable rate coding for wireless applications |
US5737326A (en) | 1996-07-12 | 1998-04-07 | Lucent Technologies Inc. | Multi-code code division multiple access receiver |
JP2001503219A (ja) | 1996-10-18 | 2001-03-06 | テレフオンアクチーボラゲツト エル エム エリクソン(パブル) | Ds―cdma移動電話システム用送信タイミングオフセット方法 |
JP3311951B2 (ja) * | 1996-12-20 | 2002-08-05 | 富士通株式会社 | 符号多重送信装置 |
JPH10190626A (ja) | 1996-12-27 | 1998-07-21 | Matsushita Electric Ind Co Ltd | Cdma受信装置 |
US5914950A (en) | 1997-04-08 | 1999-06-22 | Qualcomm Incorporated | Method and apparatus for reverse link rate scheduling |
ES2286851T3 (es) * | 1997-05-14 | 2007-12-01 | Qualcomm Incorporated | Unidad de abonado con fuentes plurales de datos y control para sistema de comunicacion inalambrica cdma. |
JP3093679B2 (ja) * | 1997-06-03 | 2000-10-03 | 三菱電機株式会社 | Cdma通信方法およびcdma通信装置 |
US6044103A (en) * | 1997-06-17 | 2000-03-28 | Qualcomm Inc. | Reduced peak-to-average amplitude dual channel link |
US6130918A (en) * | 1997-12-01 | 2000-10-10 | Nortel Networks Limited | Method and apparatus for reducing the peak-to-average ratio in a multicarrier communication system |
US6310869B1 (en) * | 1998-08-31 | 2001-10-30 | Qualcomm Incorporated | Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols |
-
1999
- 1999-01-28 US US09/239,449 patent/US6721349B1/en not_active Expired - Fee Related
-
2000
- 2000-01-28 AT AT00908418T patent/ATE375031T1/de not_active IP Right Cessation
- 2000-01-28 KR KR1020017009500A patent/KR100740738B1/ko not_active IP Right Cessation
- 2000-01-28 WO PCT/US2000/002292 patent/WO2000045518A2/en active IP Right Grant
- 2000-01-28 AU AU29765/00A patent/AU2976500A/en not_active Abandoned
- 2000-01-28 JP JP2000596669A patent/JP2002536864A/ja not_active Ceased
- 2000-01-28 AT AT07016079T patent/ATE483279T1/de not_active IP Right Cessation
- 2000-01-28 EP EP07016079A patent/EP1858171B1/de not_active Expired - Lifetime
- 2000-01-28 DE DE60045053T patent/DE60045053D1/de not_active Expired - Lifetime
- 2000-01-28 CN CNB008031622A patent/CN1196273C/zh not_active Expired - Fee Related
- 2000-01-28 EP EP00908418A patent/EP1147618B1/de not_active Expired - Lifetime
- 2000-01-28 DE DE60036605T patent/DE60036605T2/de not_active Expired - Lifetime
-
2002
- 2002-05-03 HK HK02103351A patent/HK1041750A1/xx not_active IP Right Cessation
-
2009
- 2009-09-24 JP JP2009219801A patent/JP2010050985A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2000045518A2 (en) | 2000-08-03 |
CN1338157A (zh) | 2002-02-27 |
JP2002536864A (ja) | 2002-10-29 |
EP1147618A2 (de) | 2001-10-24 |
DE60036605T2 (de) | 2008-07-03 |
KR20010101758A (ko) | 2001-11-14 |
WO2000045518A3 (en) | 2000-11-30 |
ATE375031T1 (de) | 2007-10-15 |
DE60045053D1 (de) | 2010-11-11 |
DE60036605D1 (de) | 2007-11-15 |
JP2010050985A (ja) | 2010-03-04 |
KR100740738B1 (ko) | 2007-07-19 |
US6721349B1 (en) | 2004-04-13 |
EP1147618B1 (de) | 2007-10-03 |
EP1858171B1 (de) | 2010-09-29 |
AU2976500A (en) | 2000-08-18 |
EP1858171A1 (de) | 2007-11-21 |
CN1196273C (zh) | 2005-04-06 |
ATE483279T1 (de) | 2010-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20110128 |